1. Folem ol mekanik blong enjiniaring, mekem wanwan fos poen yunifom .
2. Plet bilong gusset i kamap long hai- kwaliti ABS enjiniaring plastik, em i strong tru .
3. Dispela braket disain i adoptim trigonometri prinsipel, na stebiliti bilong en i gutpela tru .
4, wan wan stres poin i wankain liklik, i save stap longpela taim tru.
5. laplap i adoptim dabol Oxford laplap, we i wear-}resistant, anti-aging, anti{3}}} tearing na wara i no inap long wara.
